Fractional CTO UK

If you’re building a startup anywhere in the United Kingdom and need senior technical leadership without the commitment of a full-time CTO hire, a UK-based fractional CTO could be exactly what you need.

I’m Federico Toscano, a fractional CTO working with early-stage startups and non-technical founders across the UK. I’m based in London but work remotely with founders from Edinburgh to Bristol, Manchester to Cambridge – wherever you’re building.

What a UK Fractional CTO Does

A fractional CTO is a senior technical leader who works with you on a part-time or advisory basis. Unlike hiring a full-time CTO, you get experienced technical judgment and strategic guidance at a fraction of the cost and commitment.

Technical strategy – I help you make smart decisions about your technology before you build, so you’re not unpicking expensive mistakes six months later.

MVP planning and oversight – From scoping your first product to vetting development agencies, I help non-technical founders build something real without wasting runway.

Architecture and stack decisions – Choosing the wrong foundation can cripple a startup. I help you make choices that will scale with your business.

Vendor and agency oversight – Working with an external development team? I act as your technical representative, reviewing their work and keeping them accountable.

Investor support – UK investors at seed and Series A ask hard technical questions. I help you prepare credible, confident answers.

Technical hiring – Ready to bring your first engineer in-house? I help you define the role, structure the process, and make the right call.

Why UK Startups Choose a Fractional CTO

The UK startup ecosystem is active and competitive – but early-stage companies often can’t justify a full-time CTO salary. A senior CTO in the UK earns £120,000–£180,000 per year, plus equity and benefits.

A fractional CTO gives you the same level of expertise at a fraction of that cost. My retainers start at £1,000/month – you get senior technical leadership when you need it, without the fixed overhead when you don’t.

For most pre-seed and seed-stage startups, a full-time CTO isn’t necessary. A few hours of senior technical judgment per week is often all it takes to make better decisions and avoid costly mistakes.

Working Remotely Across the UK

I work remote-first and collaborate with founders across the United Kingdom. Wherever you’re based – London, Manchester, Edinburgh, Birmingham, Bristol, Leeds, or anywhere else – the engagement works the same way.

We work asynchronously throughout the month, with regular video calls for strategic discussions, architecture reviews, and team touchpoints. London-based founders have the option of in-person meetings when that makes sense.

Remote doesn’t mean distant. I stay closely engaged with what you’re building, respond quickly when you need me, and show up prepared for every call.

Who I Work With

• Non-technical founders building their first product who need a trusted technical partner
• Startups between CTOs who need interim technical leadership while they search for the right full-time hire
• Founders working with agencies or freelancers who want expert oversight to protect their investment
• Post-MVP startups hitting technical scaling challenges and needing a clear strategy
• UK startups preparing for a seed or Series A raise who need credible technical foundations

How It Works

Monthly retainer: £1,000 – £2,500/month

This gives you:

• Ongoing technical strategy and advisory throughout the month
• Architecture guidance and tech stack decisions
• Vendor proposal and code review
• Async availability for questions and quick decisions
• Representation in investor conversations where technical credibility matters

For specific scoped work – technical audits, architecture documents, hiring sprints – I price these separately based on scope.

I keep my client list deliberately small. When you work with me, you get real engagement, not a name on a roster.

Frequently Asked Questions

Do you work with startups outside London? Yes. I work with founders across the UK on a fully remote basis. Location is not a barrier to working together.

What types of startups do you work with? Primarily early-stage startups from pre-seed through Series A. My sweet spot is non-technical founders who need a trusted technical partner to turn their vision into a real product.

Can you work with our development team or agency? Yes. I regularly work alongside existing teams – acting as a technical lead, reviewing their output, and ensuring the work is heading in the right direction.

How much time do you spend with each client per month? It depends on the retainer level. Most clients at £1,000–£2,500/month receive 8–20 hours of engagement per month, spread across async work and regular calls.

How is this different from hiring a CTO full-time? A full-time CTO costs £120,000–£180,000 per year plus equity. A fractional CTO costs a fraction of that, with no equity requirement and no long-term hiring commitment. For early-stage startups that need senior judgment but not 40 hours a week, fractional is almost always the right choice.

Get Started

The best first step is a conversation. Book a free 30-minute call and tell me where you are, what you’re building, and what you’re trying to figure out.

No hard sell. No commitment. Just an honest conversation about whether I’m the right fit for what you’re building.

See also: Fractional CTO Services

Fractional CTO London